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Fair Value Measurements | 6 Months Ended
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Jun. 30, 2020
Fair Value Measurements |
Fair value measurements | NOTE 3 – FAIR VALUE MEASUREMENTS ​ The Company uses the fair value hierarchy, which prioritizes the inputs used to measure the fair value of certain of its financial instruments. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The Company uses the income and market approaches to determine the fair value of its assets and liabilities. The three levels of the fair value hierarchy are set forth below:
| ● | Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.
| ● | Level 2 – Inputs other than quoted prices in active markets included within Level 1 that are observable for the asset or liability, either directly or indirectly.
| ● | Level 3 – Unobservable inputs for the asset or liability.
​ Financial assets and liabilities measured at fair value on a recurring basis: The Company invests in various marketable securities with the intention of selling these securities to fulfill its future unsecured obligation under the Company’s nonqualified deferred compensation plan. See Note 11 for further information concerning the Company’s benefit plans. ​ The Company’s marketable securities were accounted for as trading securities and the carrying amount of its marketable securities were included in “Other assets, net” on the accompanying Condensed Consolidated Balance Sheets as of June 30, 2020, and December 31, 2019. The Company recorded an increase in fair value related to its marketable securities in the amount of $4.5 million and $1.0 million for the three months ended June 30, 2020 and 2019, which were included in “Other income (expense)” on the accompanying Condensed Consolidated Statements of Income. The Company recorded a decrease in fair value related to its marketable securities in the amount of $0.7 million for the six months ended June 30, 2020, and an increase in fair value related to its marketable securities in the amount of $3.7 million for the six months ended June 30, 2019, which were included in “Other income (expense)” on the accompanying Condensed Consolidated Statements of Income. ​ The tables below identify the estimated fair value of the Company’s marketable securities, determined by reference to quoted market prices (Level 1), as of June 30, 2020, and December 31, 2019 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2020
​ | ​ | Quoted Priced in Active Markets | ​ | Significant Other | ​ | Significant | ​ | ​ | ​
​ | ​ | for Identical Instruments | ​ | Observable Inputs | ​ | Unobservable Inputs | ​ | ​ | ​
​ |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Marketable securities | ​ | $ | 33,250 | ​ | $ | — | ​ | $ | — | ​ | $ | 33,250
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ | ​ | Quoted Prices in Active Markets | ​ | Significant Other | ​ | Significant | ​ | ​
​ | ​ | for Identical Instruments | ​ | Observable Inputs | ​ | Unobservable Inputs | ​ | ​
​ |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Marketable securities | ​ | $ | 32,201 | ​ | $ | — | ​ | $ | — | ​ | $ | 32,201
​ Non-financial assets and liabilities measured at fair value on a nonrecurring basis: Certain long-lived non-financial assets and liabilities may be required to be measured at fair value on a nonrecurring basis in certain circumstances, including when there is evidence of impairment. These non-financial assets and liabilities may include assets acquired in a business combination or property and equipment that are determined to be impaired. As of June 30, 2020, and December 31, 2019, the Company did not have any non-financial assets or liabilities that had been measured at fair value subsequent to initial recognition. ​ Fair value of financial instruments: The carrying amounts of the Company’s senior notes and unsecured revolving credit facility borrowings are included in “Long-term debt” on the accompanying Condensed Consolidated Balance Sheets as of June 30, 2020, and December 31, 2019. See Note 6 for further information concerning the Company’s senior notes and unsecured revolving credit facility. The table below identifies the estimated fair value of the Company’s senior notes, using the market approach. The fair value as of June 30, 2020, and December 31, 2019, was determined by reference to quoted market prices of the same or similar instruments (Level 2) (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2020 | ​ | December 31, 2019
​ | ​ | Carrying Amount | ​ | Estimated Fair Value | ​ | Carrying Amount | ​ | Estimated Fair Value
Senior Notes | ​ | $ | 4,127,397 | ​ | $ | 4,605,743 | ​ | $ | 3,629,527 | ​ | $ | 3,881,925
​ The carrying amount of the Company’s unsecured revolving credit facility approximates fair value (Level 2), as borrowings under the facility bear variable interest at current market rates. ​ The accompanying Condensed Consolidated Balance Sheets include other financial instruments, including cash and cash equivalents, accounts receivable, amounts receivable from suppliers and accounts payable. Due to the short-term nature of these financial instruments, the Company believes that the carrying values of these instruments approximate their fair values.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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